Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 10-30-2015, 06:39 PM   #1 (permalink)
Master EcoModder
 
Join Date: Nov 2012
Location: San Diego, California
Posts: 900
Thanks: 192
Thanked 318 Times in 224 Posts
A new welding technique.

This may help make "composite" bodies more viable in the near future.

https://news.osu.edu/news/2015/10/29/vfaweld/

  Reply With Quote
The Following 5 Users Say Thank You to RustyLugNut For This Useful Post:
ByDesign (11-01-2015), darcane (10-30-2015), freebeard (10-31-2015), JRMichler (10-31-2015), pgfpro (10-30-2015)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 10-30-2015, 06:50 PM   #2 (permalink)
.........................
 
darcane's Avatar
 
Join Date: Aug 2009
Location: Buckley, WA
Posts: 1,585

Ninja 650R - '06 Kawasaki Ninja 650R
90 day: 52.02 mpg (US)

B*tch - '01 Honda Civic HX
Team Honda
90 day: 38.09 mpg (US)

Ms. Hyde - '06 Cadillac CTS V
Sports Cars
90 day: 16.93 mpg (US)
Thanks: 374
Thanked 480 Times in 311 Posts
I can see galvanic corrosion still being an issue, but a very intriguing technique.
__________________
2001 Civic HX Mods


Past Cars:
CTS-V

2003 Silverado Mods
  Reply With Quote
Old 10-31-2015, 11:42 AM   #3 (permalink)
Master EcoModder
 
JRMichler's Avatar
 
Join Date: Feb 2011
Location: Phillips, WI
Posts: 972

Nameless - '06 GMC Canyon
90 day: 31.7 mpg (US)
Thanks: 186
Thanked 400 Times in 257 Posts
Micro explosive welding - cost effective, versatile, and can weld without destroying parts. But no KABOOM.

I used to work at a place where the owner heard about explosive welding, so he went out into his backyard with some dynamite and experimented.
__________________
The vacuum gauge plus wheel covers helped increase summer 2015 mileage to 38.5 MPG, while summer 2016 mileage was 38.6 MPG without the wheel covers. Drove 33,021 miles 2016-2018 at 35.00 MPG.
  Reply With Quote
Old 10-31-2015, 01:20 PM   #4 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 15,246
Thanks: 3,857
Thanked 5,080 Times in 4,045 Posts
I don't get it. The exploding strip of aluminum forces the one material against the other? Like a spotweld?

OTOH, galvanic corrosion requires an electrolyte. The welds themselves are in close contact, maybe unwelded areas might be a problem.
  Reply With Quote
Old 11-01-2015, 10:56 AM   #5 (permalink)
Master EcoModder
 
Join Date: Aug 2010
Location: Philippines
Posts: 2,169
Thanks: 1,728
Thanked 582 Times in 399 Posts
Sounds interesting... wonder if this means you'll need a jig or a form to weld on... or if it is possible to simply align the parts in a body shop, slap the explosive strip along the area you want the seam at, and set it off...
  Reply With Quote
Old 11-02-2015, 03:09 AM   #6 (permalink)
Master EcoModder
 
Join Date: May 2008
Location: UK
Posts: 327
Thanks: 11
Thanked 78 Times in 53 Posts
Send a message via MSN to markweatherill
Part of the process must be setting the parts together, plus the explosive, so that the energy goes where intended. For example, making sure the parts don't weld themselves to the jig.
  Reply With Quote
Old 11-02-2015, 05:55 AM   #7 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 15,246
Thanks: 3,857
Thanked 5,080 Times in 4,045 Posts
For lack of a betteer plan, I went back and read the linked article; and I found a link to

https://iml.osu.edu/vaporizing-foil-...ght-structures

Quote:
This pressure pulse from the expanding gas can be used to drive workpieces for various purposes, such as forming, shearing, tube expansion, and small-scale collision welding.
Where there is a video

  Reply With Quote
Old 11-02-2015, 03:47 PM   #8 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 15,246
Thanks: 3,857
Thanked 5,080 Times in 4,045 Posts
For anyone still interested, heres the Impulse Manufacturing Laboratory at OSU channel on Youtube:

https://www.youtube.com/channel/UCKw...4kIfJ1Q/videos

They have ten videos up. Similar to hydroforming, this is a process that allows small scale forming and welding that would be done with explosives on a larger scale. Generally the forms for something the size of the palm of your hand is constructed with 1 1/2" steel plates and 3/4" bolts. The explosive foil is like an old VW Beetle fuse (both types!). And it's set off inside a blast cabinet.

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com